Abstract
FULLERENES with metals encapsulated within the carbon cage have been prepared recently1–6. Laser vaporization of a lanthanum-impregnated graphite rod yielded an air-stable, solvent-extractable species comprising a single La atom inside a C82 cage1, denoted La@ C82; a cluster containing two La atoms (La2@ C82) was later reported3. Similar techniques applied to graphite/yttrium rods have produced Y@ C82 and Y2@ C82 (refs 5, 6). Here we describe the preparation of scandium-containing C82 species, including an encapsulated scandium trimer, Sc3@C82. Mass spectrometry and ESR spectroscopy provide evidence that the Sc3, trimer is indeed trapped within the cage.
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Shinohara, H., Sato, H., Ohkohchi, M. et al. Encapsulation of a scandium trimer in C82. Nature 357, 52–54 (1992). https://doi.org/10.1038/357052a0
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DOI: https://doi.org/10.1038/357052a0
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